Often, in 'Goku Harem Fanfic', Goku becomes more aware of his romantic side. He might be a bit more in tune with the emotions of the female characters around him compared to his original portrayal in the Dragon Ball series, where he was mostly focused on fighting and training.
His father might be extremely proud. After all, Goku has achieved so much, like protecting the Earth multiple times. He would look at Goku with admiration for his strength and kindness.
One common theme is the exploration of Goku's relationships outside of his usual fighting and training. Another is the development of the female characters in the harem, showing their unique personalities and how they interact with Goku.
Well, Vegeta would be a likely character. He might be initially suspicious of the female Goku. Maybe he thinks she's a threat or just can't believe there's another Goku - like being. He could be there to add some comical moments as he tries to understand the situation.
In general, it's a bit of a toss-up. The strength of Manga Goku and Anime Goku can vary depending on the specific arcs and battles. Sometimes, it might seem like one is stronger in a particular situation, but that could change in another.
One popular 'Goku Harem Fanfic' story could be the one where Goku's different relationships with various female characters from the Dragon Ball universe are explored in a romantic context. For example, some might focus on his interactions with Chi - Chi, Bulma, and Android 18 all at once. Another might be where new female characters are introduced into the story specifically for the harem concept.
Well, 'Goku's Galactic Harem' is also quite known. In this fanfic, Goku travels across the galaxy and gathers female allies who gradually become part of his harem. The stories often include epic battles against powerful foes, and the harem members use their unique skills to support Goku. It's interesting to see how Goku's character is adapted to fit into a harem - themed story, as he is usually so focused on fighting and training in the original series.
Bulma could be one of the characters in the harem. She has a long - standing relationship with Goku and her intelligence could complement Goku's power. Another could be Chi - Chi, his wife. Her fierce loyalty and determination would make her an interesting part of the harem.